As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SUPPORT TASK: MAIN CABIN FLOOR STA 990 RBL 30-35 CORROSION NOTED. TRANSCRIBED FROM HAECO GSO NRC# 9286618 REMOVED CORROSION FROM WEB STA 990 RBL 30-35. ORIGINAL MATERIAL THICKNESS .020, REMOVED .010 OUT OF LIMITS IAW SRM 53-7 0-15. FABRICATED AND INSTALLED NEW WEB PN# 147A5712-3 IAW B737-7 00 SRM 51-10-02 AND BAC DWG 147A5700 REV B.